摘要
土层预应力锚杆广泛应用于基坑支护与边坡治理工程中,但应力损失一直是锚杆工程中普遍存在的问题。本文首先对锚杆的作用机理进行详细的理论分析,指出锚杆的预应力损失是由锚杆与土层之间的非弹性变形引起的,进而深入分析了影响预应力损失的几种主要因素,认为在不同的情况下,各种因素对预应力损失的影响是不一样的,同时,对各种影响因素提出了相应的施工对策。
Pre-stressed soil anchor is mainly used in supporting engineering of excavation and slop, but pre-stress loss is common. This paper analyzes the mechanism of anchor at first, considers that the pre-stress loss is caused by non-elasticity distortion between anchor and soil, and then analyzes several key correlative factors with pre-stress loss. It point that, in different cases, the reason for pre-stress loss is different. At last the paper proposes the appropriate countermeasures for the different cause .
出处
《广州建筑》
2008年第3期3-5,共3页
GUANGZHOU ARCHITECTURE
关键词
锚杆
预应力
塑性变形
损失
anchor
pre-stress
plastic deformation
loss
